<template>
  <!-- 主体部分 -->
  <section class="main">
    <!-- 全选反选按钮 -->
    <input
      id="toggle-all"
      class="toggle-all"
      type="checkbox"
      v-model="status"
    />
    <label for="toggle-all">Mark all as complete</label>
    <ul class="todo-list">
      <!-- 当任务已完成，可以给 li 加上 completed 类，会让元素加上删除线 -->
      <li
        v-for="item in list"
        :key="item.id"
        :class="{ completed: item.isDone }"
      >
        <div class="view">
          <input
            class="toggle"
            type="checkbox"
            @change="$emit('handleChange', item.id)"
            :checked="item.isDone"
          />
          <label>{{ item.name }}</label>
          <button class="destroy" @click="$emit('destroy', item.id)"></button>
        </div>
      </li>
    </ul>
  </section>
</template>

<script>
export default {
  props: {
    list: {
      type: Array,
      require: true,
    },
  },
  computed: {
    status: {
      get() {
        return (
          this.list.filter((item) => item.isDone === true).length ===
          this.list.length
        );
      },
      set(value) {
        this.$emit("status", value);
      },
    },
  },
};
</script>

<style></style>
